Article

Histone deacetylase inhibitors protect against and mitigate the lethality of total-body irradiation in mice.

Department of Radiation Oncology, Henry Ford Hospital, Detroit, Michigan 48202, USA.
Radiation Research (impact factor: 2.68). 05/2008; 169(4):474-8. DOI:10.1667/RR1245.1 pp.474-8
Source: PubMed

ABSTRACT It was hypothesized that histone deacetylase (HDAC) inhibitors may increase survival after total-body irradiation (TBI) based on previous reports demonstrating that HDAC inhibitors stimulate the proliferation of bone marrow stem cells. Using the time for mice to lose 20% or more of their weight as the end point, two HDAC inhibitors, valproic acid and trichostatin-A, were found to reduce lethality in a dose-dependent manner. HDAC inhibitors were effective at reducing lethality when given either 24 h before or 1 h after TBI. The results indicate that HDAC inhibitors have potential for protecting against and mitigating radiation-induced lethality.

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Keywords

end point
 
HDAC
 
HDAC inhibitors
 
HDAC inhibitors stimulate
 
histone deacetylase
 
proliferation
 
radiation-induced lethality
 
TBI
 
total-body irradiation
 
trichostatin-A